Synopsis by Hans J. Wollstein
Although tossed off a roof in chapter two of the Universal serial Pirate Treasure, adventurer Dick Moreland (Richard Talmadge) is saved by a series of awnings that break his fall. After telling Dorothy Craig (Lucille Lund) of the treasure, the plucky girl suggests that they inspect her father's yacht, the Lottie Carson, which would be perfect for a treasure hunt. But en route to the harbor, Dick realizes that they are being followed and switches to a motorcycle. While Dorothy unsuccessfully attempts to waylay the pursuers, Dick speeds toward a dangerously narrow bridge booby-trapped by the villains.